International Journal of Marine Science, 2016, Vol.6, No.13, 1-4
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Villanueva et al. (2004) reported that arginine was needed for metabolism process in cephalopod, while Pereira et
al. (2000) stated that this amino acid was highly found in mollusc muscle. Villanuela et al. (2004) also reported
leucine and lycine were highly found in sea molluscs. According to Murdinah (2009), green mussel contain
protein 16.7-21.9 %, that were rich in arginine, leucine and lysin. This finding also similar with Chairunisah (2011)
and Hidayat (2011).
Table 2 showed the content of nonessential amino acid in
Anadara indica
.
Table 1 Content of essential amino acid in
Anadara indica
Amino Acid
Garapan
Cibungur
Large
Medium
Small
Large
Medium
Small
Histidine
0,41 %
0,34 %
0,27 %
0,33 %
0,34 %
0,42 %
Arginine
1,47 %
1,23 %
1,24 %
1,33 %
1,39 %
1,86 %
Threonine
0,62 %
0,69 %
0,55 %
0,71 %
0,63 %
0,86 %
Valine
0,76 %
0,64 %
0,60 %
0,69 %
0,65 %
0,75 %
Metheonine
0,50 %
0,40 %
0,36 %
0,41 %
0,38 %
0,52 %
Lysin
1,16 %
0,98 %
1,16 %
1,34 %
1,30 %
1,38 %
Isoleucine
0,77 %
0,64 %
0,59 %
0,69 %
0,64 %
0,72 %
Leucine
1,24 %
1,04 %
1,06 %
1,07 %
1,05 %
1,30 %
Phenylalanine
0,82 %
0,68 %
0,50 %
0,57 %
0,51 %
0,74 %
Triptophan
0,59 %
0,53 %
0,48 %
0,22 %
0,18 %
0,00 %
Total
8,34 %
7,17 %
6,81 %
7,36 %
7,07 %
8,55 %
Table 2 Content of nonessential amino acid in
Anadara indica
Amino Acid
Garapan
Cibungur
Large
Medium
Small
Large
Medium
Small
Glutamic Acid
1,78 %
1,56 %
2,16 %
2,08 %
2,08 %
2,51 %
Aspartic Acid
1,25 %
1,06 %
1,40 %
1,68 %
1,64 %
1,80 %
Serine
0,71 %
0,51 %
0,64 %
0,59 %
0,64 %
0,88 %
Glycine
0,96 %
0,80 %
0,85 %
1,01 %
1,01 %
1,28 %
Alanine
0,83 %
0,70 %
0,76 %
0,60 %
0,63 %
1,06 %
Proline
1,42 %
0,50 %
0,53 %
0,46 %
0,47 %
0,80 %
Cystine
0,27 %
0,20 %
0,12 %
0,16 %
0,15 %
0,00 %
Tyrosine
0,78 %
0,64 %
0,59 %
0,74 %
0,63 %
0,80 %
Total
8,00 %
5,97 %
7,05 %
7,32 %
7,25 %
9,13 %
Glutamic acid, aspartic acid and glycine have high concentration in
A. indica
(Table 2). The highest content of
those amino acids were found in small
A. indica
at Cibungur (2.51, 1.80, 1,28). Cystine has the lower
concentration in this cockle (0.00 – 0.27) compared to other nonessential amino acids. Totally, high content of
nonessential amino acids were found in small
A. indica
at Cibungur and large
A. indica
at Garapan.
This finding has the same result as Derby et al (2007), who reported that in sea mollusc, glutamic acid, aspartic
acid, glycine and alanine were abundant. Krug et al. (2009), stated that in muscle tissue, very high content of
nonessential amino acid have been observed. They were alanine, glycine, and glutamic acid.
Based on the result, this cockle were good as source of protein. Murdinah (2009) stated that in condiment (like
sauce) made of green mussel contained 15 amino acid. From all of them, there are 4 amino acids that dominant,
which were glutamic acid (9,37%), glycine (8,24%), alanine (8,11%), and lysine (8,24%). West and Tood (1964)
in Nurhayati (2011), stated that those amino acid together with serine, threonine, cystine and proline give a sweet
taste, while glutamic acid as flavour taste.
Result of statistical analysis, showed that there was no siginficant difference on amino acid content either essential
or nonessential between three body size of
Anadara indica
for each location (p > 0.05).
